Originally presented as the author's thesis--J.W. Goethe-Universiteat, Frankfurt am Main, 1997.
The Author: Bello Sodangi Yaro Al-Hassan was born in 1956 in Birnin-Kebbi, Nigeria. After the Bachelor's degree in 1979, he took up an appointment with the Ahmadu Bello University, Zaria, a premier University in Africa, where he was Senior Lecturer until 1992 when he gained the DAAD scholarship to study comparative African Linguistics at the J.W. Goethe-Universitaet in Frankfurt am Main which he accomplished in 1997. He is back to Ahmadu Bello University, Zaria, Nigeria, as lecturer in the Department of African Languages.